Kernel panic with openbsd 6.2

Hello,

I had many kernel panic these past days. This is a 6.2 openbsd VM running on esxi 5.5

I took screenshots then followed
https://www.openbsd.org/ddb.html

# objdump -dlr /sys/arch/amd64/compile/GENERIC.MP/obj/if_vmx.o > /tmp/if_vmx.dis

# grep "<vmxnet3_getbuf>" /tmp/if_vmx.dis
    10f6:       e8 d5 00 00 00          callq  11d0 <vmxnet3_getbuf>
    1176:       e8 55 00 00 00          callq  11d0 <vmxnet3_getbuf>
00000000000011d0 <vmxnet3_getbuf>:
    1857:       e8 74 f9 ff ff          callq  11d0 <vmxnet3_getbuf>

# grep -n 10f6 /tmp/if_vmx.dis
1667:    10f6:  e8 d5 00 00 00          callq  11d0 <vmxnet3_getbuf>

# grep "<vmxnet3_getbuf>:" /tmp/if_vmx.dis
00000000000011d0 <vmxnet3_getbuf>:

# printf '%x\n' $((0x11d0 + 0x263))
1433

vi /tmp/if_vmx.dis
   2040     1433:       ba 01 00 00 00          mov    $0x1,%edx
I find is on line 2040

=> But the file is only 1251 line long
nl -ba /sys/dev/pci/if_vmx.c | sed -n 2040p

=> So that last command gives me nothing

Do you have an idea of what mistake I did so that I can make a report ?

Thank you